South Cross Bayou WWTP - Pinellas County, Florida Wastewater Treatment Plant

South Cross Bayou WWTP is a major wastewater treatment facility located in Pinellas County, Florida, serving a population of approximately 207,750. As one of the larger plants in the region, it plays a critical role in managing municipal wastewater for the densely populated Tampa Bay area. The plant operates under the U. S. Clean Water Act, which requires NPDES permits for discharges. For a facility of this scale, advanced treatment is typically expected to meet stringent nutrient limits, especially given Florida's sensitive coastal environment. The designed capacity is 1.00 (likely in million gallons per day), indicating a large-scale operation. Treated effluent from South Cross Bayou WWTP is discharged into local waterways that drain into Tampa Bay, an ecologically important estuary. The bay supports diverse marine life, including seagrasses and mangroves, and is a key habitat for fish and bird species. Protecting water quality in this watershed is essential for both ecological health and regional recreation.

The plant's discharge enters the Tampa Bay watershed, a large estuary on Florida's Gulf Coast. Tampa Bay is a shallow, nutrient-sensitive water body that supports extensive seagrass beds and mangrove forests, providing critical nursery habitat for fish and shellfish. Downstream, the bay connects to the Gulf of Mexico, a major marine ecosystem. Nutrient loading from wastewater can contribute to algal blooms and hypoxia, making advanced treatment important for maintaining water quality.